US 11,654,853 B2
Vehicle side airbag device and occupant protection device
Osamu Fukawatase, Miyoshi (JP); Kazuhiro Kawamura, Toyota (JP); Yuto Ota, Toyota (JP); and Yuta Arai, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Oct. 20, 2021, as Appl. No. 17/505,985.
Claims priority of application No. JP2020-177573 (JP), filed on Oct. 22, 2020.
Prior Publication US 2022/0126777 A1, Apr. 28, 2022
Int. Cl. B60R 21/207 (2006.01); B60R 21/18 (2006.01); B60R 21/231 (2011.01); B60R 21/233 (2006.01); B60R 21/261 (2011.01); B60R 21/00 (2006.01)
CPC B60R 21/207 (2013.01) [B60R 21/18 (2013.01); B60R 21/233 (2013.01); B60R 21/23138 (2013.01); B60R 21/261 (2013.01); B60R 2021/0006 (2013.01); B60R 2021/23146 (2013.01); B60R 2021/2612 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A vehicle side airbag device installed at a side section on a vehicle width direction outer side of a seatback of a vehicle seat configured to restrain an occupant using a three-point seatbelt, the vehicle side airbag device comprising:
an inflator configured to generate gas in a vehicle side-on collision;
a side airbag including a waist chamber configured to inflate and deploy from a lower portion of the side section toward a side of a waist of the occupant on receiving a supply of gas from the inflator, and a head chamber configured to inflate and deploy from an upper face side of the side section toward a side of a head of the occupant on receiving a supply of gas from the inflator; and
a duct that extends along a vertical direction of the side airbag inside the side airbag, and is configured to guide gas from the inflator into the waist chamber and into the head chamber,
an upper side ejection port is formed at an upper end portion of the duct so as to open into the head chamber and to open further toward the head of the occupant than a shoulder belt of the seatbelt during inflation and deployment of the side airbag, and the upper side ejection port of the duct is set so as to open at a space between a side face of a headrest of the vehicle seat, the shoulder belt, and an upper end portion of the side section during inflation and deployment of the side airbag.